What has changed is that 2.4GHz devices must now 'listen' before they transmit so as to reduce the possibility of mutual interference.

And a quick reminder to those upgrading/downgrading. From my experience last month, if you update the firmware in tx and rx then you must rebind the rx afterwards. You may think (as I initially did!) that if they were already bound before the upgrade/downgrade they wouldn't need binding again. However until you rebind you'll see that whilst they work, the response is very jittery. Fine once rebound though.

I've left mine - for now - in the old firmware, mainly because I have two gliders with X4R rxs that are a little awkward to get to to do the upgrade.

What has changed is that 2.4GHz devices must now 'listen' before they transmit so as to reduce the possibility of mutual interference.

And a quick reminder to those upgrading/downgrading. From my experience last month, if you update the firmware in tx and rx then you must rebind the rx afterwards. You may think (as I initially did!) that if they were already bound before the upgrade/downgrade they wouldn't need binding again. However until you rebind you'll see that whilst they work, the response is very jittery. Fine once rebound though.

I've left mine - for now - in the old firmware, mainly because I have two gliders with X4R rxs that are a little awkward to get to to do the upgrade.

Thanks for the info. Mine didn't work at all until they were re-bound.

I modified a short extension lead (removed the +ve lead and swapped around the others) so I can use the two FrSky leads 'as-is' for rxs, and for the tx by adding the short extension lead. I'll also need to make up another lead for my X4R rxs before I eventually upgrade everything.

Interesting to see that some people found normal response before rebinding after upgrading - rather than the jittery response I initially had. It may be relevant that when I upgraded (and then downgraded) last month I had my WiFi router less than a metre away.

re Yes, you did, Chris. I'm not the world's best at reading instructions, being a firm aficionado of the "if all else fails, read the instructions" school. You'd think I'd have learned after 62 years, but there's another saying about old dogs and new tricks too. At least I'm just young enough to learn slowly!

Thanks again. My new R4Xs are now in models awaiting an opportunity to try them.

How much Futaba gear will become redundant because of the new EU regs or restricted regarding buying new receivers? I know the most recent Futaba systems are supposed to be euro compliant but what about older 2.4 systems - did any have telemetry?

And how much is a Futaba 32 channel telemetry ready system again? How much a Futaba 8 channel + S-bus telemetry receiver?

ps - other than the EU regs, 'all this downloading' enables you to add new features as they are developed, and to apply bug fixes yourself instead of returning it to the dealer.

Thanks Pete, but I don't have any issues at all with my futaba.That is why I was surprised to learn than people were updating their equipment. As a newbie, I am obviously concerned that I may be allowing my equipment to slide into obsolescence because I am not up-dating it.

Sorry to interlude on a Frsky thread (but it is part Frsky related), Futaba did update their FAAST system and if you have a 14sg you can update to the new EU regs, the Futaba Faast rxs don't need to be updated, but if you are using the updated Futaba firmware you will need to update any Frsky FAAST compatible receivers that were imported before 1st Jan 2015.

Updated Martyn Coles' Transmitter, 3 X8 and 1 X4 receivers on Wednesday. The X4 was a bit of a pain as I had to make up a lead for the tiny s-port interface used on this Rx but apart from that - all OK, no problems. Worth noting though that all receivers had to be rebound afterwards so I guess that John P was correct.

All in all, it really is a non event - nothing really to worry about, just follow the instructions.